The expert approach: a case study. - Ilian Mihaylov; Penko Ivanov; Eliza Stefanova; Avram Eskenazi; Sylvia Ilieva (CompSysTech, 2003)

Analyses of an Agile Methodology Implementation. - Sylvia Ilieva; Penko Ivanov; Eliza Stefanova (EUROMICRO, 2004)

Gap Analyses between Certified SME's Process and an Agile Approach. - Penko Ivanov; Sylvia Ilieva (IASTED Conf. on Software Engineering, 2005)